IBM B50, Руководство по обслуживанию

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Fansink
Removal
1. Inform the customer that the system must be powered off for approximately one
hour for the fan to be replaced.
2. Power off the system as described in "Removing the Cover" and continue to
unlock and remove the cover.
3. Determine the system board assembly part number by noting the white bar code
label attached to the card.
Locate the assembly part number in the leftmost alphanumeric block of
characters, following the first three characters, which are always
11S.
In the
following example, the assembly part number is 41L5812.
The FRU part number is in the center alphanumeric block of characters, following
the first three characters, which are always
FRU.
In the example below, the FRU
part number is 41L5912.
11S 2YL1109140246 FRU 905 41L581 41L5912
After you have identified both the system board assembly part number and the
FRU part number, see the table, Fansink numbers by System Board Assembly
and FRU Numbers, on page 8-5 to determine the appropriate fan to be replaced.
4. To remove the disk drive bracket, refer to the "Removing Internal Drive" section
to remove the disk drive bracket.
Note: If a hard file is attached to the disk drive bracket, unplug the hard file
before removing the bracket.
Chapter 7. Removal and Replacement Procedures
7-13